diff --git a/src/libdisk/mkfile b/src/libdisk/mkfile
index af49af6b..d3c909a7 100644
--- a/src/libdisk/mkfile
+++ b/src/libdisk/mkfile
@@ -1,18 +1,11 @@
 <$PLAN9/src/mkhdr
 
 OFILES=\
-	disk.$O\
 	proto.$O\
-	scsi.$O\
 
 HFILES=$PLAN9/include/disk.h
 LIB=libdisk.a
 
-UPDATE=\
-	mkfile\
-	$HFILES\
-	${OFILES:%.$O=%.c}\
-
 <$PLAN9/src/mksyslib
 
 $O.test: test.$O $LIB